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IC DESCRIPTION
QQ
IC, LC72343G
3 7 63 1515 0
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
TE
L 13942296513
20
21
22
23
24
25
26
27
28
29
30
31
32
33-44
45
46
47
48
www
49
50
51
.
52
http://www.xiaoyu163.com
Pin Name
I/O
XOUT
O
Connections for a 75kHz crystal oscillator element.
TEST2
I
IC test pins. These pins must be tied to ground.
PA3
I
PA2
I
Special-purpose key return signal input port.
PA1
I
PA0
I
PB3
O
PB2
O
Special-purpose key source signal output port.
PB1
O
PB0
O
PC3
I/O
PC2
I/O
PC1
I/O
PC0
I/O
General-purpose I/O port.
PD3
I/O
PD2
I/O
PD1
I/O
________
INT/PD0
I/O
PE1
O
General-purpose output port.
BEEP/PE0
O
PF2
I
PF1/ADI1
I
General-purpose input and A/D converter input shared function port.
PF0/ADI0
I
VSS
—
Ground pin.
PG3/S20
I/O
PG2/S19
I/O
PG1/S18
I/O
PG0/S17
I/O
LCD driver segment output and general-purpose I/O shared function port.
PH3/S16
I/O
PH2/S15
I/O
PH1/S14
I/O
PH0/S13
I/O
S12-S1
O
LCD driver segment output pins.
COM4
O
COM3
O
LCD driver common output pins.
COM2
O
COM1
O
DBR4
—
x
ao
DBR3
—
y
LCD power supply stepped-up voltage pins.
DBR2
—
i
DBR1
—
http://www.xiaoyu163.com
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19
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9 4
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Description
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2 9
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